import 'package:flutter/material.dart';

main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: "11",
      home: Scaffold(
        body: ExpansionTile(
          title: Text("title"),
          children: <Widget>[
            ListTile(title: Text('list tile'), subtitle: Text('subtitle')),
            Flex(
                children: [
                  Padding(
                      padding: EdgeInsets.all(16.0),
                      child: Text(
                        "111",
                      ))
                ],
                direction: Axis.horizontal,
                mainAxisAlignment: MainAxisAlignment.start)
          ],
          initiallyExpanded: false,
        ),
        appBar: AppBar(
          title: Text("11"),
        ),
      ),
    );
  }
}
